asgardius/alsa-utils
1
0
Fork 0
mirror of https://github.com/alsa-project/alsa-utils synced 2024-11-09 02:15:42 +01:00
Code Issues Projects Releases Packages Wiki Activity
alsa-utils/aplay/aplay.c
Diego E. 'Flameeyes' Pettenò 6232f1c96c Make some static tables and strings constants. 
By doing this we move them from the .data section to .rodata setion,
or from .data.rel to .data.rel.ro.

The .rodata section is mapped directly from the on-disk file, which is
always a save, while .data.rel.ro is mapped directly when using
prelink, which is a save in a lot of cases.

Signed-off-by: Diego E. 'Flameeyes' Pettenò <flameeyes@gmail.com>
2008-11-21 13:10:02 +01:00

2565 lines
66 KiB
C
Raw Blame History

/*
* aplay.c - plays and records
*
* CREATIVE LABS CHANNEL-files
* Microsoft WAVE-files
* SPARC AUDIO .AU-files
* Raw Data
*
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Based on vplay program by Michael Beck
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <malloc.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <fcntl.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <time.h>
#include <locale.h>
#include <alsa/asoundlib.h>
#include <assert.h>
#include <sys/poll.h>
#include <sys/uio.h>
#include <sys/time.h>
#include <sys/signal.h>
#include <asm/byteorder.h>
#include "aconfig.h"
#include "gettext.h"
#include "formats.h"
#include "version.h"
#ifndef LLONG_MAX
#define LLONG_MAX 9223372036854775807LL
#endif
#define DEFAULT_FORMAT SND_PCM_FORMAT_U8
#define DEFAULT_SPEED 8000
#define FORMAT_DEFAULT -1
#define FORMAT_RAW 0
#define FORMAT_VOC 1
#define FORMAT_WAVE 2
#define FORMAT_AU 3
/* global data */
static snd_pcm_sframes_t (*readi_func)(snd_pcm_t *handle, void *buffer, snd_pcm_uframes_t size);
static snd_pcm_sframes_t (*writei_func)(snd_pcm_t *handle, const void *buffer, snd_pcm_uframes_t size);
static snd_pcm_sframes_t (*readn_func)(snd_pcm_t *handle, void **bufs, snd_pcm_uframes_t size);
static snd_pcm_sframes_t (*writen_func)(snd_pcm_t *handle, void **bufs, snd_pcm_uframes_t size);
enum {
VUMETER_NONE,
VUMETER_MONO,
VUMETER_STEREO
};
static char *command;
static snd_pcm_t *handle;
static struct {
snd_pcm_format_t format;
unsigned int channels;
unsigned int rate;
} hwparams, rhwparams;
static int timelimit = 0;
static int quiet_mode = 0;
static int file_type = FORMAT_DEFAULT;
static int open_mode = 0;
static snd_pcm_stream_t stream = SND_PCM_STREAM_PLAYBACK;
static int mmap_flag = 0;
static int interleaved = 1;
static int nonblock = 0;
static u_char *audiobuf = NULL;
static snd_pcm_uframes_t chunk_size = 0;
static unsigned period_time = 0;
static unsigned buffer_time = 0;
static snd_pcm_uframes_t period_frames = 0;
static snd_pcm_uframes_t buffer_frames = 0;
static int avail_min = -1;
static int start_delay = 0;
static int stop_delay = 0;
static int verbose = 0;
static int vumeter = VUMETER_NONE;
static int buffer_pos = 0;
static size_t bits_per_sample, bits_per_frame;
static size_t chunk_bytes;
static int test_position = 0;
static snd_output_t *log;
static int fd = -1;
static off64_t pbrec_count = LLONG_MAX, fdcount;
static int vocmajor, vocminor;
/* needed prototypes */
static void playback(char *filename);
static void capture(char *filename);
static void playbackv(char **filenames, unsigned int count);
static void capturev(char **filenames, unsigned int count);
static void begin_voc(int fd, size_t count);
static void end_voc(int fd);
static void begin_wave(int fd, size_t count);
static void end_wave(int fd);
static void begin_au(int fd, size_t count);
static void end_au(int fd);
static const struct fmt_capture {
void (*start) (int fd, size_t count);
void (*end) (int fd);
char *what;
long long max_filesize;
} fmt_rec_table[] = {
{ NULL, NULL, N_("raw data"), LLONG_MAX },
{ begin_voc, end_voc, N_("VOC"), 16000000LL },
/* FIXME: can WAV handle exactly 2GB or less than it? */
{ begin_wave, end_wave, N_("WAVE"), 2147483648LL },
{ begin_au, end_au, N_("Sparc Audio"), LLONG_MAX }
};
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
#define error(...) do {\
fprintf(stderr, "%s: %s:%d: ", command, __FUNCTION__, __LINE__); \
fprintf(stderr, __VA_ARGS__); \
putc('\n', stderr); \
} while (0)
#else
#define error(args...) do {\
fprintf(stderr, "%s: %s:%d: ", command, __FUNCTION__, __LINE__); \
fprintf(stderr, ##args); \
putc('\n', stderr); \
} while (0)
#endif
static void usage(char *command)
{
snd_pcm_format_t k;
printf(
_("Usage: %s [OPTION]... [FILE]...\n"
"\n"
"-h, --help help\n"
" --version print current version\n"
"-l, --list-devices list all soundcards and digital audio devices\n"
"-L, --list-pcms list device names\n"
"-D, --device=NAME select PCM by name\n"
"-q, --quiet quiet mode\n"
"-t, --file-type TYPE file type (voc, wav, raw or au)\n"
"-c, --channels=# channels\n"
"-f, --format=FORMAT sample format (case insensitive)\n"
"-r, --rate=# sample rate\n"
"-d, --duration=# interrupt after # seconds\n"
"-M, --mmap mmap stream\n"
"-N, --nonblock nonblocking mode\n"
"-F, --period-time=# distance between interrupts is # microseconds\n"
"-B, --buffer-time=# buffer duration is # microseconds\n"
" --period-size=# distance between interrupts is # frames\n"
" --buffer-size=# buffer duration is # frames\n"
"-A, --avail-min=# min available space for wakeup is # microseconds\n"
"-R, --start-delay=# delay for automatic PCM start is # microseconds \n"
" (relative to buffer size if <= 0)\n"
"-T, --stop-delay=# delay for automatic PCM stop is # microseconds from xrun\n"
"-v, --verbose show PCM structure and setup (accumulative)\n"
"-V, --vumeter=TYPE enable VU meter (TYPE: mono or stereo)\n"
"-I, --separate-channels one file for each channel\n"
" --disable-resample disable automatic rate resample\n"
" --disable-channels disable automatic channel conversions\n"
" --disable-format disable automatic format conversions\n"
" --disable-softvol disable software volume control (softvol)\n"
" --test-position test ring buffer position\n")
, command);
printf(_("Recognized sample formats are:"));
for (k = 0; k < SND_PCM_FORMAT_LAST; ++k) {
const char *s = snd_pcm_format_name(k);
if (s)
printf(" %s", s);
}
printf(_("\nSome of these may not be available on selected hardware\n"));
printf(_("The availabled format shortcuts are:\n"));
printf(_("-f cd (16 bit little endian, 44100, stereo)\n"));
printf(_("-f cdr (16 bit big endian, 44100, stereo)\n"));
printf(_("-f dat (16 bit little endian, 48000, stereo)\n"));
}
static void device_list(void)
{
snd_ctl_t *handle;
int card, err, dev, idx;
snd_ctl_card_info_t *info;
snd_pcm_info_t *pcminfo;
snd_ctl_card_info_alloca(&info);
snd_pcm_info_alloca(&pcminfo);
card = -1;
if (snd_card_next(&card) < 0 || card < 0) {
error(_("no soundcards found..."));
return;
}
printf(_("**** List of %s Hardware Devices ****\n"),
snd_pcm_stream_name(stream));
while (card >= 0) {
char name[32];
sprintf(name, "hw:%d", card);
if ((err = snd_ctl_open(&handle, name, 0)) < 0) {
error("control open (%i): %s", card, snd_strerror(err));
goto next_card;
}
if ((err = snd_ctl_card_info(handle, info)) < 0) {
error("control hardware info (%i): %s", card, snd_strerror(err));
snd_ctl_close(handle);
goto next_card;
}
dev = -1;
while (1) {
unsigned int count;
if (snd_ctl_pcm_next_device(handle, &dev)<0)
error("snd_ctl_pcm_next_device");
if (dev < 0)
break;
snd_pcm_info_set_device(pcminfo, dev);
snd_pcm_info_set_subdevice(pcminfo, 0);
snd_pcm_info_set_stream(pcminfo, stream);
if ((err = snd_ctl_pcm_info(handle, pcminfo)) < 0) {
if (err != -ENOENT)
error("control digital audio info (%i): %s", card, snd_strerror(err));
continue;
}
printf(_("card %i: %s [%s], device %i: %s [%s]\n"),
card, snd_ctl_card_info_get_id(info), snd_ctl_card_info_get_name(info),
dev,
snd_pcm_info_get_id(pcminfo),
snd_pcm_info_get_name(pcminfo));
count = snd_pcm_info_get_subdevices_count(pcminfo);
printf( _(" Subdevices: %i/%i\n"),
snd_pcm_info_get_subdevices_avail(pcminfo), count);
for (idx = 0; idx < (int)count; idx++) {
snd_pcm_info_set_subdevice(pcminfo, idx);
if ((err = snd_ctl_pcm_info(handle, pcminfo)) < 0) {
error("control digital audio playback info (%i): %s", card, snd_strerror(err));
} else {
printf(_(" Subdevice #%i: %s\n"),
idx, snd_pcm_info_get_subdevice_name(pcminfo));
}
}
}
snd_ctl_close(handle);
next_card:
if (snd_card_next(&card) < 0) {
error("snd_card_next");
break;
}
}
}
static void pcm_list(void)
{
void **hints, **n;
char *name, *descr, *descr1, *io;
const char *filter;
if (snd_device_name_hint(-1, "pcm", &hints) < 0)
return;
n = hints;
filter = stream == SND_PCM_STREAM_CAPTURE ? "Input" : "Output";
while (*n != NULL) {
name = snd_device_name_get_hint(*n, "NAME");
descr = snd_device_name_get_hint(*n, "DESC");
io = snd_device_name_get_hint(*n, "IOID");
if (io != NULL && strcmp(io, filter) == 0)
goto __end;
printf("%s\n", name);
if ((descr1 = descr) != NULL) {
printf(" ");
while (*descr1) {
if (*descr1 == '\n')
printf("\n ");
else
putchar(*descr1);
descr1++;
}
putchar('\n');
}
__end:
if (name != NULL)
free(name);
if (descr != NULL)
free(descr);
if (io != NULL)
free(io);
n++;
}
snd_device_name_free_hint(hints);
}
static void version(void)
{
printf("%s: version " SND_UTIL_VERSION_STR " by Jaroslav Kysela <perex@perex.cz>\n", command);
}
static void signal_handler(int sig)
{
if (verbose==2)
putchar('\n');
if (!quiet_mode)
fprintf(stderr, _("Aborted by signal %s...\n"), strsignal(sig));
if (stream == SND_PCM_STREAM_CAPTURE) {
if (fmt_rec_table[file_type].end) {
fmt_rec_table[file_type].end(fd);
fd = -1;
}
stream = -1;
}
if (fd > 1) {
close(fd);
fd = -1;
}
if (handle && sig != SIGABRT) {
snd_pcm_close(handle);
handle = NULL;
}
exit(EXIT_FAILURE);
}
enum {
OPT_VERSION = 1,
OPT_PERIOD_SIZE,
OPT_BUFFER_SIZE,
OPT_DISABLE_RESAMPLE,
OPT_DISABLE_CHANNELS,
OPT_DISABLE_FORMAT,
OPT_DISABLE_SOFTVOL,
OPT_TEST_POSITION
};
int main(int argc, char *argv[])
{
int option_index;
static const char short_options[] = "hnlLD:qt:c:f:r:d:MNF:A:R:T:B:vV:IPC";
static const struct option long_options[] = {
{"help", 0, 0, 'h'},
{"version", 0, 0, OPT_VERSION},
{"list-devnames", 0, 0, 'n'},
{"list-devices", 0, 0, 'l'},
{"list-pcms", 0, 0, 'L'},
{"device", 1, 0, 'D'},
{"quiet", 0, 0, 'q'},
{"file-type", 1, 0, 't'},
{"channels", 1, 0, 'c'},
{"format", 1, 0, 'f'},
{"rate", 1, 0, 'r'},
{"duration", 1, 0 ,'d'},
{"mmap", 0, 0, 'M'},
{"nonblock", 0, 0, 'N'},
{"period-time", 1, 0, 'F'},
{"period-size", 1, 0, OPT_PERIOD_SIZE},
{"avail-min", 1, 0, 'A'},
{"start-delay", 1, 0, 'R'},
{"stop-delay", 1, 0, 'T'},
{"buffer-time", 1, 0, 'B'},
{"buffer-size", 1, 0, OPT_BUFFER_SIZE},
{"verbose", 0, 0, 'v'},
{"vumeter", 1, 0, 'V'},
{"separate-channels", 0, 0, 'I'},
{"playback", 0, 0, 'P'},
{"capture", 0, 0, 'C'},
{"disable-resample", 0, 0, OPT_DISABLE_RESAMPLE},
{"disable-channels", 0, 0, OPT_DISABLE_CHANNELS},
{"disable-format", 0, 0, OPT_DISABLE_FORMAT},
{"disable-softvol", 0, 0, OPT_DISABLE_SOFTVOL},
{"test-position", 0, 0, OPT_TEST_POSITION},
{0, 0, 0, 0}
};
char *pcm_name = "default";
int tmp, err, c;
int do_device_list = 0, do_pcm_list = 0;
snd_pcm_info_t *info;
#ifdef ENABLE_NLS
setlocale(LC_ALL, "");
textdomain(PACKAGE);
#endif
snd_pcm_info_alloca(&info);
err = snd_output_stdio_attach(&log, stderr, 0);
assert(err >= 0);
command = argv[0];
file_type = FORMAT_DEFAULT;
if (strstr(argv[0], "arecord")) {
stream = SND_PCM_STREAM_CAPTURE;
file_type = FORMAT_WAVE;
command = "arecord";
start_delay = 1;
} else if (strstr(argv[0], "aplay")) {
stream = SND_PCM_STREAM_PLAYBACK;
command = "aplay";
} else {
error(_("command should be named either arecord or aplay"));
return 1;
}
chunk_size = -1;
rhwparams.format = DEFAULT_FORMAT;
rhwparams.rate = DEFAULT_SPEED;
rhwparams.channels = 1;
while ((c = getopt_long(argc, argv, short_options, long_options, &option_index)) != -1) {
switch (c) {
case 'h':
usage(command);
return 0;
case OPT_VERSION:
version();
return 0;
case 'l':
do_device_list = 1;
break;
case 'L':
do_pcm_list = 1;
break;
case 'D':
pcm_name = optarg;
break;
case 'q':
quiet_mode = 1;
break;
case 't':
if (strcasecmp(optarg, "raw") == 0)
file_type = FORMAT_RAW;
else if (strcasecmp(optarg, "voc") == 0)
file_type = FORMAT_VOC;
else if (strcasecmp(optarg, "wav") == 0)
file_type = FORMAT_WAVE;
else if (strcasecmp(optarg, "au") == 0 || strcasecmp(optarg, "sparc") == 0)
file_type = FORMAT_AU;
else {
error(_("unrecognized file format %s"), optarg);
return 1;
}
break;
case 'c':
rhwparams.channels = strtol(optarg, NULL, 0);
if (rhwparams.channels < 1 || rhwparams.channels > 32) {
error(_("value %i for channels is invalid"), rhwparams.channels);
return 1;
}
break;
case 'f':
if (strcasecmp(optarg, "cd") == 0 || strcasecmp(optarg, "cdr") == 0) {
if (strcasecmp(optarg, "cdr") == 0)
rhwparams.format = SND_PCM_FORMAT_S16_BE;
else
rhwparams.format = file_type == FORMAT_AU ? SND_PCM_FORMAT_S16_BE : SND_PCM_FORMAT_S16_LE;
rhwparams.rate = 44100;
rhwparams.channels = 2;
} else if (strcasecmp(optarg, "dat") == 0) {
rhwparams.format = file_type == FORMAT_AU ? SND_PCM_FORMAT_S16_BE : SND_PCM_FORMAT_S16_LE;
rhwparams.rate = 48000;
rhwparams.channels = 2;
} else {
rhwparams.format = snd_pcm_format_value(optarg);
if (rhwparams.format == SND_PCM_FORMAT_UNKNOWN) {
error(_("wrong extended format '%s'"), optarg);
exit(EXIT_FAILURE);
}
}
break;
case 'r':
tmp = strtol(optarg, NULL, 0);
if (tmp < 300)
tmp *= 1000;
rhwparams.rate = tmp;
if (tmp < 2000 || tmp > 192000) {
error(_("bad speed value %i"), tmp);
return 1;
}
break;
case 'd':
timelimit = strtol(optarg, NULL, 0);
break;
case 'N':
nonblock = 1;
open_mode |= SND_PCM_NONBLOCK;
break;
case 'F':
period_time = strtol(optarg, NULL, 0);
break;
case 'B':
buffer_time = strtol(optarg, NULL, 0);
break;
case OPT_PERIOD_SIZE:
period_frames = strtol(optarg, NULL, 0);
break;
case OPT_BUFFER_SIZE:
buffer_frames = strtol(optarg, NULL, 0);
break;
case 'A':
avail_min = strtol(optarg, NULL, 0);
break;
case 'R':
start_delay = strtol(optarg, NULL, 0);
break;
case 'T':
stop_delay = strtol(optarg, NULL, 0);
break;
case 'v':
verbose++;
if (verbose > 1 && !vumeter)
vumeter = VUMETER_MONO;
break;
case 'V':
if (*optarg == 's')
vumeter = VUMETER_STEREO;
else if (*optarg == 'm')
vumeter = VUMETER_MONO;
else
vumeter = VUMETER_NONE;
break;
case 'M':
mmap_flag = 1;
break;
case 'I':
interleaved = 0;
break;
case 'P':
stream = SND_PCM_STREAM_PLAYBACK;
command = "aplay";
break;
case 'C':
stream = SND_PCM_STREAM_CAPTURE;
command = "arecord";
start_delay = 1;
if (file_type == FORMAT_DEFAULT)
file_type = FORMAT_WAVE;
break;
case OPT_DISABLE_RESAMPLE:
open_mode |= SND_PCM_NO_AUTO_RESAMPLE;
break;
case OPT_DISABLE_CHANNELS:
open_mode |= SND_PCM_NO_AUTO_CHANNELS;
break;
case OPT_DISABLE_FORMAT:
open_mode |= SND_PCM_NO_AUTO_FORMAT;
break;
case OPT_DISABLE_SOFTVOL:
open_mode |= SND_PCM_NO_SOFTVOL;
break;
case OPT_TEST_POSITION:
test_position = 1;
break;
default:
fprintf(stderr, _("Try `%s --help' for more information.\n"), command);
return 1;
}
}
if (do_device_list) {
if (do_pcm_list) pcm_list();
device_list();
goto __end;
} else if (do_pcm_list) {
pcm_list();
goto __end;
}
err = snd_pcm_open(&handle, pcm_name, stream, open_mode);
if (err < 0) {
error(_("audio open error: %s"), snd_strerror(err));
return 1;
}
if ((err = snd_pcm_info(handle, info)) < 0) {
error(_("info error: %s"), snd_strerror(err));
return 1;
}
if (nonblock) {
err = snd_pcm_nonblock(handle, 1);
if (err < 0) {
error(_("nonblock setting error: %s"), snd_strerror(err));
return 1;
}
}
chunk_size = 1024;
hwparams = rhwparams;
audiobuf = (u_char *)malloc(1024);
if (audiobuf == NULL) {
error(_("not enough memory"));
return 1;
}
if (mmap_flag) {
writei_func = snd_pcm_mmap_writei;
readi_func = snd_pcm_mmap_readi;
writen_func = snd_pcm_mmap_writen;
readn_func = snd_pcm_mmap_readn;
} else {
writei_func = snd_pcm_writei;
readi_func = snd_pcm_readi;
writen_func = snd_pcm_writen;
readn_func = snd_pcm_readn;
}
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
signal(SIGABRT, signal_handler);
if (interleaved) {
if (optind > argc - 1) {
if (stream == SND_PCM_STREAM_PLAYBACK)
playback(NULL);
else
capture(NULL);
} else {
while (optind <= argc - 1) {
if (stream == SND_PCM_STREAM_PLAYBACK)
playback(argv[optind++]);
else
capture(argv[optind++]);
}
}
} else {
if (stream == SND_PCM_STREAM_PLAYBACK)
playbackv(&argv[optind], argc - optind);
else
capturev(&argv[optind], argc - optind);
}
if (verbose==2)
putchar('\n');
snd_pcm_close(handle);
free(audiobuf);
__end:
snd_output_close(log);
snd_config_update_free_global();
return EXIT_SUCCESS;
}
/*
* Safe read (for pipes)
*/
static ssize_t safe_read(int fd, void *buf, size_t count)
{
ssize_t result = 0, res;
while (count > 0) {
if ((res = read(fd, buf, count)) == 0)
break;
if (res < 0)
return result > 0 ? result : res;
count -= res;
result += res;
buf = (char *)buf + res;
}
return result;
}
/*
* Test, if it is a .VOC file and return >=0 if ok (this is the length of rest)
* < 0 if not
*/
static int test_vocfile(void *buffer)
{
VocHeader *vp = buffer;
if (!memcmp(vp->magic, VOC_MAGIC_STRING, 20)) {
vocminor = LE_SHORT(vp->version) & 0xFF;
vocmajor = LE_SHORT(vp->version) / 256;
if (LE_SHORT(vp->version) != (0x1233 - LE_SHORT(vp->coded_ver)))
return -2; /* coded version mismatch */
return LE_SHORT(vp->headerlen) - sizeof(VocHeader); /* 0 mostly */
}
return -1; /* magic string fail */
}
/*
* helper for test_wavefile
*/
static size_t test_wavefile_read(int fd, u_char *buffer, size_t *size, size_t reqsize, int line)
{
if (*size >= reqsize)
return *size;
if ((size_t)safe_read(fd, buffer + *size, reqsize - *size) != reqsize - *size) {
error(_("read error (called from line %i)"), line);
exit(EXIT_FAILURE);
}
return *size = reqsize;
}
#define check_wavefile_space(buffer, len, blimit) \
if (len > blimit) { \
blimit = len; \
if ((buffer = realloc(buffer, blimit)) == NULL) { \
error(_("not enough memory")); \
exit(EXIT_FAILURE); \
} \
}
/*
* test, if it's a .WAV file, > 0 if ok (and set the speed, stereo etc.)
* == 0 if not
* Value returned is bytes to be discarded.
*/
static ssize_t test_wavefile(int fd, u_char *_buffer, size_t size)
{
WaveHeader *h = (WaveHeader *)_buffer;
u_char *buffer = NULL;
size_t blimit = 0;
WaveFmtBody *f;
WaveChunkHeader *c;
u_int type, len;
if (size < sizeof(WaveHeader))
return -1;
if (h->magic != WAV_RIFF || h->type != WAV_WAVE)
return -1;
if (size > sizeof(WaveHeader)) {
check_wavefile_space(buffer, size - sizeof(WaveHeader), blimit);
memcpy(buffer, _buffer + sizeof(WaveHeader), size - sizeof(WaveHeader));
}
size -= sizeof(WaveHeader);
while (1) {
check_wavefile_space(buffer, sizeof(WaveChunkHeader), blimit);
test_wavefile_read(fd, buffer, &size, sizeof(WaveChunkHeader), __LINE__);
c = (WaveChunkHeader*)buffer;
type = c->type;
len = LE_INT(c->length);
len += len % 2;
if (size > sizeof(WaveChunkHeader))
memmove(buffer, buffer + sizeof(WaveChunkHeader), size - sizeof(WaveChunkHeader));
size -= sizeof(WaveChunkHeader);
if (type == WAV_FMT)
break;
check_wavefile_space(buffer, len, blimit);
test_wavefile_read(fd, buffer, &size, len, __LINE__);
if (size > len)
memmove(buffer, buffer + len, size - len);
size -= len;
}
if (len < sizeof(WaveFmtBody)) {
error(_("unknown length of 'fmt ' chunk (read %u, should be %u at least)"),
len, (u_int)sizeof(WaveFmtBody));
exit(EXIT_FAILURE);
}
check_wavefile_space(buffer, len, blimit);
test_wavefile_read(fd, buffer, &size, len, __LINE__);
f = (WaveFmtBody*) buffer;
if (LE_SHORT(f->format) == WAV_FMT_EXTENSIBLE) {
WaveFmtExtensibleBody *fe = (WaveFmtExtensibleBody*)buffer;
if (len < sizeof(WaveFmtExtensibleBody)) {
error(_("unknown length of extensible 'fmt ' chunk (read %u, should be %u at least)"),
len, (u_int)sizeof(WaveFmtExtensibleBody));
exit(EXIT_FAILURE);
}
if (memcmp(fe->guid_tag, WAV_GUID_TAG, 14) != 0) {
error(_("wrong format tag in extensible 'fmt ' chunk"));
exit(EXIT_FAILURE);
}
f->format = fe->guid_format;
}
if (LE_SHORT(f->format) != WAV_FMT_PCM &&
LE_SHORT(f->format) != WAV_FMT_IEEE_FLOAT) {
error(_("can't play WAVE-file format 0x%04x which is not PCM or FLOAT encoded"), LE_SHORT(f->format));
exit(EXIT_FAILURE);
}
if (LE_SHORT(f->channels) < 1) {
error(_("can't play WAVE-files with %d tracks"), LE_SHORT(f->channels));
exit(EXIT_FAILURE);
}
hwparams.channels = LE_SHORT(f->channels);
switch (LE_SHORT(f->bit_p_spl)) {
case 8:
if (hwparams.format != DEFAULT_FORMAT &&
hwparams.format != SND_PCM_FORMAT_U8)
fprintf(stderr, _("Warning: format is changed to U8\n"));
hwparams.format = SND_PCM_FORMAT_U8;
break;
case 16:
if (hwparams.format != DEFAULT_FORMAT &&
hwparams.format != SND_PCM_FORMAT_S16_LE)
fprintf(stderr, _("Warning: format is changed to S16_LE\n"));
hwparams.format = SND_PCM_FORMAT_S16_LE;
break;
case 24:
switch (LE_SHORT(f->byte_p_spl) / hwparams.channels) {
case 3:
if (hwparams.format != DEFAULT_FORMAT &&
hwparams.format != SND_PCM_FORMAT_S24_3LE)
fprintf(stderr, _("Warning: format is changed to S24_3LE\n"));
hwparams.format = SND_PCM_FORMAT_S24_3LE;
break;
case 4:
if (hwparams.format != DEFAULT_FORMAT &&
hwparams.format != SND_PCM_FORMAT_S24_LE)
fprintf(stderr, _("Warning: format is changed to S24_LE\n"));
hwparams.format = SND_PCM_FORMAT_S24_LE;
break;
default:
error(_(" can't play WAVE-files with sample %d bits in %d bytes wide (%d channels)"),
LE_SHORT(f->bit_p_spl), LE_SHORT(f->byte_p_spl), hwparams.channels);
exit(EXIT_FAILURE);
}
break;
case 32:
if (LE_SHORT(f->format) == WAV_FMT_PCM)
hwparams.format = SND_PCM_FORMAT_S32_LE;
else if (LE_SHORT(f->format) == WAV_FMT_IEEE_FLOAT)
hwparams.format = SND_PCM_FORMAT_FLOAT_LE;
break;
default:
error(_(" can't play WAVE-files with sample %d bits wide"),
LE_SHORT(f->bit_p_spl));
exit(EXIT_FAILURE);
}
hwparams.rate = LE_INT(f->sample_fq);
if (size > len)
memmove(buffer, buffer + len, size - len);
size -= len;
while (1) {
u_int type, len;
check_wavefile_space(buffer, sizeof(WaveChunkHeader), blimit);
test_wavefile_read(fd, buffer, &size, sizeof(WaveChunkHeader), __LINE__);
c = (WaveChunkHeader*)buffer;
type = c->type;
len = LE_INT(c->length);
if (size > sizeof(WaveChunkHeader))
memmove(buffer, buffer + sizeof(WaveChunkHeader), size - sizeof(WaveChunkHeader));
size -= sizeof(WaveChunkHeader);
if (type == WAV_DATA) {
if (len < pbrec_count && len < 0x7ffffffe)
pbrec_count = len;
if (size > 0)
memcpy(_buffer, buffer, size);
free(buffer);
return size;
}
len += len % 2;
check_wavefile_space(buffer, len, blimit);
test_wavefile_read(fd, buffer, &size, len, __LINE__);
if (size > len)
memmove(buffer, buffer + len, size - len);
size -= len;
}
/* shouldn't be reached */
return -1;
}
/*
*/
static int test_au(int fd, void *buffer)
{
AuHeader *ap = buffer;
if (ap->magic != AU_MAGIC)
return -1;
if (BE_INT(ap->hdr_size) > 128 || BE_INT(ap->hdr_size) < 24)
return -1;
pbrec_count = BE_INT(ap->data_size);
switch (BE_INT(ap->encoding)) {
case AU_FMT_ULAW:
if (hwparams.format != DEFAULT_FORMAT &&
hwparams.format != SND_PCM_FORMAT_MU_LAW)
fprintf(stderr, _("Warning: format is changed to MU_LAW\n"));
hwparams.format = SND_PCM_FORMAT_MU_LAW;
break;
case AU_FMT_LIN8:
if (hwparams.format != DEFAULT_FORMAT &&
hwparams.format != SND_PCM_FORMAT_U8)
fprintf(stderr, _("Warning: format is changed to U8\n"));
hwparams.format = SND_PCM_FORMAT_U8;
break;
case AU_FMT_LIN16:
if (hwparams.format != DEFAULT_FORMAT &&
hwparams.format != SND_PCM_FORMAT_S16_BE)
fprintf(stderr, _("Warning: format is changed to S16_BE\n"));
hwparams.format = SND_PCM_FORMAT_S16_BE;
break;
default:
return -1;
}
hwparams.rate = BE_INT(ap->sample_rate);
if (hwparams.rate < 2000 || hwparams.rate > 256000)
return -1;
hwparams.channels = BE_INT(ap->channels);
if (hwparams.channels < 1 || hwparams.channels > 128)
return -1;
if ((size_t)safe_read(fd, buffer + sizeof(AuHeader), BE_INT(ap->hdr_size) - sizeof(AuHeader)) != BE_INT(ap->hdr_size) - sizeof(AuHeader)) {
error(_("read error"));
exit(EXIT_FAILURE);
}
return 0;
}
static void set_params(void)
{
snd_pcm_hw_params_t *params;
snd_pcm_sw_params_t *swparams;
snd_pcm_uframes_t buffer_size;
int err;
size_t n;
unsigned int rate;
snd_pcm_uframes_t start_threshold, stop_threshold;
snd_pcm_hw_params_alloca(&params);
snd_pcm_sw_params_alloca(&swparams);
err = snd_pcm_hw_params_any(handle, params);
if (err < 0) {
error(_("Broken configuration for this PCM: no configurations available"));
exit(EXIT_FAILURE);
}
if (mmap_flag) {
snd_pcm_access_mask_t *mask = alloca(snd_pcm_access_mask_sizeof());
snd_pcm_access_mask_none(mask);
snd_pcm_access_mask_set(mask, SND_PCM_ACCESS_MMAP_INTERLEAVED);
snd_pcm_access_mask_set(mask, SND_PCM_ACCESS_MMAP_NONINTERLEAVED);
snd_pcm_access_mask_set(mask, SND_PCM_ACCESS_MMAP_COMPLEX);
err = snd_pcm_hw_params_set_access_mask(handle, params, mask);
} else if (interleaved)
err = snd_pcm_hw_params_set_access(handle, params,
SND_PCM_ACCESS_RW_INTERLEAVED);
else
err = snd_pcm_hw_params_set_access(handle, params,
SND_PCM_ACCESS_RW_NONINTERLEAVED);
if (err < 0) {
error(_("Access type not available"));
exit(EXIT_FAILURE);
}
err = snd_pcm_hw_params_set_format(handle, params, hwparams.format);
if (err < 0) {
error(_("Sample format non available"));
exit(EXIT_FAILURE);
}
err = snd_pcm_hw_params_set_channels(handle, params, hwparams.channels);
if (err < 0) {
error(_("Channels count non available"));
exit(EXIT_FAILURE);
}
#if 0
err = snd_pcm_hw_params_set_periods_min(handle, params, 2);
assert(err >= 0);
#endif
rate = hwparams.rate;
err = snd_pcm_hw_params_set_rate_near(handle, params, &hwparams.rate, 0);
assert(err >= 0);
if ((float)rate * 1.05 < hwparams.rate || (float)rate * 0.95 > hwparams.rate) {
if (!quiet_mode) {
char plugex[64];
const char *pcmname = snd_pcm_name(handle);
fprintf(stderr, _("Warning: rate is not accurate (requested = %iHz, got = %iHz)\n"), rate, hwparams.rate);
if (! pcmname || strchr(snd_pcm_name(handle), ':'))
*plugex = 0;
else
snprintf(plugex, sizeof(plugex), "(-Dplug:%s)",
snd_pcm_name(handle));
fprintf(stderr, _(" please, try the plug plugin %s\n"),
plugex);
}
}
rate = hwparams.rate;
if (buffer_time == 0 && buffer_frames == 0) {
err = snd_pcm_hw_params_get_buffer_time_max(params,
&buffer_time, 0);
assert(err >= 0);
if (buffer_time > 500000)
buffer_time = 500000;
}
if (period_time == 0 && period_frames == 0) {
if (buffer_time > 0)
period_time = buffer_time / 4;
else
period_frames = buffer_frames / 4;
}
if (period_time > 0)
err = snd_pcm_hw_params_set_period_time_near(handle, params,
&period_time, 0);
else
err = snd_pcm_hw_params_set_period_size_near(handle, params,
&period_frames, 0);
assert(err >= 0);
if (buffer_time > 0) {
err = snd_pcm_hw_params_set_buffer_time_near(handle, params,
&buffer_time, 0);
} else {
err = snd_pcm_hw_params_set_buffer_size_near(handle, params,
&buffer_frames);
}
assert(err >= 0);
err = snd_pcm_hw_params(handle, params);
if (err < 0) {
error(_("Unable to install hw params:"));
snd_pcm_hw_params_dump(params, log);
exit(EXIT_FAILURE);
}
snd_pcm_hw_params_get_period_size(params, &chunk_size, 0);
snd_pcm_hw_params_get_buffer_size(params, &buffer_size);
if (chunk_size == buffer_size) {
error(_("Can't use period equal to buffer size (%lu == %lu)"),
chunk_size, buffer_size);
exit(EXIT_FAILURE);
}
snd_pcm_sw_params_current(handle, swparams);
if (avail_min < 0)
n = chunk_size;
else
n = (double) rate * avail_min / 1000000;
err = snd_pcm_sw_params_set_avail_min(handle, swparams, n);
/* round up to closest transfer boundary */
n = buffer_size;
if (start_delay <= 0) {
start_threshold = n + (double) rate * start_delay / 1000000;
} else
start_threshold = (double) rate * start_delay / 1000000;
if (start_threshold < 1)
start_threshold = 1;
if (start_threshold > n)
start_threshold = n;
err = snd_pcm_sw_params_set_start_threshold(handle, swparams, start_threshold);
assert(err >= 0);
if (stop_delay <= 0)
stop_threshold = buffer_size + (double) rate * stop_delay / 1000000;
else
stop_threshold = (double) rate * stop_delay / 1000000;
err = snd_pcm_sw_params_set_stop_threshold(handle, swparams, stop_threshold);
assert(err >= 0);
if (snd_pcm_sw_params(handle, swparams) < 0) {
error(_("unable to install sw params:"));
snd_pcm_sw_params_dump(swparams, log);
exit(EXIT_FAILURE);
}
if (verbose)
snd_pcm_dump(handle, log);
bits_per_sample = snd_pcm_format_physical_width(hwparams.format);
bits_per_frame = bits_per_sample * hwparams.channels;
chunk_bytes = chunk_size * bits_per_frame / 8;
audiobuf = realloc(audiobuf, chunk_bytes);
if (audiobuf == NULL) {
error(_("not enough memory"));
exit(EXIT_FAILURE);
}
// fprintf(stderr, "real chunk_size = %i, frags = %i, total = %i\n", chunk_size, setup.buf.block.frags, setup.buf.block.frags * chunk_size);
/* stereo VU-meter isn't always available... */
if (vumeter == VUMETER_STEREO) {
if (hwparams.channels != 2 || !interleaved || verbose > 2)
vumeter = VUMETER_MONO;
}
/* show mmap buffer arragment */
if (mmap_flag && verbose) {
const snd_pcm_channel_area_t *areas;
snd_pcm_uframes_t offset;
int i;
err = snd_pcm_mmap_begin(handle, &areas, &offset, &chunk_size);
if (err < 0) {
error("snd_pcm_mmap_begin problem: %s", snd_strerror(err));
exit(EXIT_FAILURE);
}
for (i = 0; i < hwparams.channels; i++)
fprintf(stderr, "mmap_area[%i] = %p,%u,%u (%u)\n", i, areas[i].addr, areas[i].first, areas[i].step, snd_pcm_format_physical_width(hwparams.format));
/* not required, but for sure */
snd_pcm_mmap_commit(handle, offset, 0);
}
buffer_frames = buffer_size; /* for position test */
}
#ifndef timersub
#define timersub(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
if ((result)->tv_usec < 0) { \
--(result)->tv_sec; \
(result)->tv_usec += 1000000; \
} \
} while (0)
#endif
/* I/O error handler */
static void xrun(void)
{
snd_pcm_status_t *status;
int res;
snd_pcm_status_alloca(&status);
if ((res = snd_pcm_status(handle, status))<0) {
error(_("status error: %s"), snd_strerror(res));
exit(EXIT_FAILURE);
}
if (snd_pcm_status_get_state(status) == SND_PCM_STATE_XRUN) {
struct timeval now, diff, tstamp;
gettimeofday(&now, 0);
snd_pcm_status_get_trigger_tstamp(status, &tstamp);
timersub(&now, &tstamp, &diff);
fprintf(stderr, _("%s!!! (at least %.3f ms long)\n"),
stream == SND_PCM_STREAM_PLAYBACK ? _("underrun") : _("overrun"),
diff.tv_sec * 1000 + diff.tv_usec / 1000.0);
if (verbose) {
fprintf(stderr, _("Status:\n"));
snd_pcm_status_dump(status, log);
}
if ((res = snd_pcm_prepare(handle))<0) {
error(_("xrun: prepare error: %s"), snd_strerror(res));
exit(EXIT_FAILURE);
}
return; /* ok, data should be accepted again */
} if (snd_pcm_status_get_state(status) == SND_PCM_STATE_DRAINING) {
if (verbose) {
fprintf(stderr, _("Status(DRAINING):\n"));
snd_pcm_status_dump(status, log);
}
if (stream == SND_PCM_STREAM_CAPTURE) {
fprintf(stderr, _("capture stream format change? attempting recover...\n"));
if ((res = snd_pcm_prepare(handle))<0) {
error(_("xrun(DRAINING): prepare error: %s"), snd_strerror(res));
exit(EXIT_FAILURE);
}
return;
}
}
if (verbose) {
fprintf(stderr, _("Status(R/W):\n"));
snd_pcm_status_dump(status, log);
}
error(_("read/write error, state = %s"), snd_pcm_state_name(snd_pcm_status_get_state(status)));
exit(EXIT_FAILURE);
}
/* I/O suspend handler */
static void suspend(void)
{
int res;
if (!quiet_mode)
fprintf(stderr, _("Suspended. Trying resume. ")); fflush(stderr);
while ((res = snd_pcm_resume(handle)) == -EAGAIN)
sleep(1); /* wait until suspend flag is released */
if (res < 0) {
if (!quiet_mode)
fprintf(stderr, _("Failed. Restarting stream. ")); fflush(stderr);
if ((res = snd_pcm_prepare(handle)) < 0) {
error(_("suspend: prepare error: %s"), snd_strerror(res));
exit(EXIT_FAILURE);
}
}
if (!quiet_mode)
fprintf(stderr, _("Done.\n"));
}
static void print_vu_meter_mono(int perc, int maxperc)
{
const int bar_length = 50;
char line[80];
int val;
for (val = 0; val <= perc * bar_length / 100 && val < bar_length; val++)
line[val] = '#';
for (; val <= maxperc * bar_length / 100 && val < bar_length; val++)
line[val] = ' ';
line[val] = '+';
for (++val; val <= bar_length; val++)
line[val] = ' ';
if (maxperc > 99)
sprintf(line + val, "| MAX");
else
sprintf(line + val, "| %02i%%", maxperc);
fputs(line, stdout);
if (perc > 100)
printf(_(" !clip "));
}
static void print_vu_meter_stereo(int *perc, int *maxperc)
{
const int bar_length = 35;
char line[80];
int c;
memset(line, ' ', sizeof(line) - 1);
line[bar_length + 3] = '|';
for (c = 0; c < 2; c++) {
int p = perc[c] * bar_length / 100;
char tmp[4];
if (p > bar_length)
p = bar_length;
if (c)
memset(line + bar_length + 6 + 1, '#', p);
else
memset(line + bar_length - p - 1, '#', p);
p = maxperc[c] * bar_length / 100;
if (p > bar_length)
p = bar_length;
if (c)
line[bar_length + 6 + 1 + p] = '+';
else
line[bar_length - p - 1] = '+';
if (maxperc[c] > 99)
sprintf(tmp, "MAX");
else
sprintf(tmp, "%02d%%", maxperc[c]);
if (c)
memcpy(line + bar_length + 3 + 1, tmp, 3);
else
memcpy(line + bar_length, tmp, 3);
}
line[bar_length * 2 + 6 + 2] = 0;
fputs(line, stdout);
}
static void print_vu_meter(signed int *perc, signed int *maxperc)
{
if (vumeter == VUMETER_STEREO)
print_vu_meter_stereo(perc, maxperc);
else
print_vu_meter_mono(*perc, *maxperc);
}
/* peak handler */
static void compute_max_peak(u_char *data, size_t count)
{
signed int val, max, perc[2], max_peak[2];
static int run = 0;
size_t ocount = count;
int format_little_endian = snd_pcm_format_little_endian(hwparams.format);
int ichans, c;
if (vumeter == VUMETER_STEREO)
ichans = 2;
else
ichans = 1;
memset(max_peak, 0, sizeof(max_peak));
switch (bits_per_sample) {
case 8: {
signed char *valp = (signed char *)data;
signed char mask = snd_pcm_format_silence(hwparams.format);
c = 0;
while (count-- > 0) {
val = *valp++ ^ mask;
val = abs(val);
if (max_peak[c] < val)
max_peak[c] = val;
if (vumeter == VUMETER_STEREO)
c = !c;
}
break;
}
case 16: {
signed short *valp = (signed short *)data;
signed short mask = snd_pcm_format_silence_16(hwparams.format);
signed short sval;
count /= 2;
c = 0;
while (count-- > 0) {
if (format_little_endian)
sval = __le16_to_cpu(*valp);
else
sval = __be16_to_cpu(*valp);
sval = abs(sval) ^ mask;
if (max_peak[c] < sval)
max_peak[c] = sval;
valp++;
if (vumeter == VUMETER_STEREO)
c = !c;
}
break;
}
case 24: {
unsigned char *valp = data;
signed int mask = snd_pcm_format_silence_32(hwparams.format);
count /= 3;
c = 0;
while (count-- > 0) {
if (format_little_endian) {
val = valp[0] | (valp[1]<<8) | (valp[2]<<16);
} else {
val = (valp[0]<<16) | (valp[1]<<8) | valp[2];
}
/* Correct signed bit in 32-bit value */
if (val & (1<<(bits_per_sample-1))) {
val |= 0xff<<24; /* Negate upper bits too */
}
val = abs(val) ^ mask;
if (max_peak[c] < val)
max_peak[c] = val;
valp += 3;
if (vumeter == VUMETER_STEREO)
c = !c;
}
break;
}
case 32: {
signed int *valp = (signed int *)data;
signed int mask = snd_pcm_format_silence_32(hwparams.format);
count /= 4;
c = 0;
while (count-- > 0) {
if (format_little_endian)
val = __le32_to_cpu(*valp);
else
val = __be32_to_cpu(*valp);
val = abs(val) ^ mask;
if (max_peak[c] < val)
max_peak[c] = val;
valp++;
if (vumeter == VUMETER_STEREO)
c = !c;
}
break;
}
default:
if (run == 0) {
fprintf(stderr, _("Unsupported bit size %d.\n"), (int)bits_per_sample);
run = 1;
}
return;
}
max = 1 << (bits_per_sample-1);
if (max <= 0)
max = 0x7fffffff;
for (c = 0; c < ichans; c++) {
if (bits_per_sample > 16)
perc[c] = max_peak[c] / (max / 100);
else
perc[c] = max_peak[c] * 100 / max;
}
if (interleaved && verbose <= 2) {
static int maxperc[2];
static time_t t=0;
const time_t tt=time(NULL);
if(tt>t) {
t=tt;
maxperc[0] = 0;
maxperc[1] = 0;
}
for (c = 0; c < ichans; c++)
if (perc[c] > maxperc[c])
maxperc[c] = perc[c];
putchar('\r');
print_vu_meter(perc, maxperc);
fflush(stdout);
}
else if(verbose==3) {
printf(_("Max peak (%li samples): 0x%08x "), (long)ocount, max_peak[0]);
for (val = 0; val < 20; val++)
if (val <= perc[0] / 5)
putchar('#');
else
putchar(' ');
printf(" %i%%\n", perc[0]);
fflush(stdout);
}
}
static void do_test_position(void)
{
static int counter = 0;
snd_pcm_sframes_t avail, delay;
int err;
err = snd_pcm_avail_delay(handle, &avail, &delay);
if (err < 0)
return;
if (avail > 4 * (snd_pcm_sframes_t)buffer_frames ||
avail < -4 * (snd_pcm_sframes_t)buffer_frames ||
delay > 4 * (snd_pcm_sframes_t)buffer_frames ||
delay < -4 * (snd_pcm_sframes_t)buffer_frames) {
fprintf(stderr, "Suspicious buffer position (%i total): avail = %li, delay = %li, buffer = %li\n", ++counter, (long)avail, (long)delay, (long)buffer_frames);
} else if (verbose) {
fprintf(stderr, "Buffer position: %li/%li (%li)\n", (long)avail, (long)delay, (long)buffer_frames);
}
}
/*
* write function
*/
static ssize_t pcm_write(u_char *data, size_t count)
{
ssize_t r;
ssize_t result = 0;
if (count < chunk_size) {
snd_pcm_format_set_silence(hwparams.format, data + count * bits_per_frame / 8, (chunk_size - count) * hwparams.channels);
count = chunk_size;
}
while (count > 0) {
if (test_position)
do_test_position();
r = writei_func(handle, data, count);
if (test_position)
do_test_position();
if (r == -EAGAIN || (r >= 0 && (size_t)r < count)) {
snd_pcm_wait(handle, 1000);
} else if (r == -EPIPE) {
xrun();
} else if (r == -ESTRPIPE) {
suspend();
} else if (r < 0) {
error(_("write error: %s"), snd_strerror(r));
exit(EXIT_FAILURE);
}
if (r > 0) {
if (vumeter)
compute_max_peak(data, r * hwparams.channels);
result += r;
count -= r;
data += r * bits_per_frame / 8;
}
}
return result;
}
static ssize_t pcm_writev(u_char **data, unsigned int channels, size_t count)
{
ssize_t r;
size_t result = 0;
if (count != chunk_size) {
unsigned int channel;
size_t offset = count;
size_t remaining = chunk_size - count;
for (channel = 0; channel < channels; channel++)
snd_pcm_format_set_silence(hwparams.format, data[channel] + offset * bits_per_sample / 8, remaining);
count = chunk_size;
}
while (count > 0) {
unsigned int channel;
void *bufs[channels];
size_t offset = result;
for (channel = 0; channel < channels; channel++)
bufs[channel] = data[channel] + offset * bits_per_sample / 8;
if (test_position)
do_test_position();
r = writen_func(handle, bufs, count);
if (test_position)
do_test_position();
if (r == -EAGAIN || (r >= 0 && (size_t)r < count)) {
snd_pcm_wait(handle, 1000);
} else if (r == -EPIPE) {
xrun();
} else if (r == -ESTRPIPE) {
suspend();
} else if (r < 0) {
error(_("writev error: %s"), snd_strerror(r));
exit(EXIT_FAILURE);
}
if (r > 0) {
if (vumeter) {
for (channel = 0; channel < channels; channel++)
compute_max_peak(data[channel], r);
}
result += r;
count -= r;
}
}
return result;
}
/*
* read function
*/
static ssize_t pcm_read(u_char *data, size_t rcount)
{
ssize_t r;
size_t result = 0;
size_t count = rcount;
if (count != chunk_size) {
count = chunk_size;
}
while (count > 0) {
if (test_position)
do_test_position();
r = readi_func(handle, data, count);
if (test_position)
do_test_position();
if (r == -EAGAIN || (r >= 0 && (size_t)r < count)) {
snd_pcm_wait(handle, 1000);
} else if (r == -EPIPE) {
xrun();
} else if (r == -ESTRPIPE) {
suspend();
} else if (r < 0) {
error(_("read error: %s"), snd_strerror(r));
exit(EXIT_FAILURE);
}
if (r > 0) {
if (vumeter)
compute_max_peak(data, r * hwparams.channels);
result += r;
count -= r;
data += r * bits_per_frame / 8;
}
}
return rcount;
}
static ssize_t pcm_readv(u_char **data, unsigned int channels, size_t rcount)
{
ssize_t r;
size_t result = 0;
size_t count = rcount;
if (count != chunk_size) {
count = chunk_size;
}
while (count > 0) {
unsigned int channel;
void *bufs[channels];
size_t offset = result;
for (channel = 0; channel < channels; channel++)
bufs[channel] = data[channel] + offset * bits_per_sample / 8;
if (test_position)
do_test_position();
r = readn_func(handle, bufs, count);
if (test_position)
do_test_position();
if (r == -EAGAIN || (r >= 0 && (size_t)r < count)) {
snd_pcm_wait(handle, 1000);
} else if (r == -EPIPE) {
xrun();
} else if (r == -ESTRPIPE) {
suspend();
} else if (r < 0) {
error(_("readv error: %s"), snd_strerror(r));
exit(EXIT_FAILURE);
}
if (r > 0) {
if (vumeter) {
for (channel = 0; channel < channels; channel++)
compute_max_peak(data[channel], r);
}
result += r;
count -= r;
}
}
return rcount;
}
/*
* ok, let's play a .voc file
*/
static ssize_t voc_pcm_write(u_char *data, size_t count)
{
ssize_t result = count, r;
size_t size;
while (count > 0) {
size = count;
if (size > chunk_bytes - buffer_pos)
size = chunk_bytes - buffer_pos;
memcpy(audiobuf + buffer_pos, data, size);
data += size;
count -= size;
buffer_pos += size;
if ((size_t)buffer_pos == chunk_bytes) {
if ((size_t)(r = pcm_write(audiobuf, chunk_size)) != chunk_size)
return r;
buffer_pos = 0;
}
}
return result;
}
static void voc_write_silence(unsigned x)
{
unsigned l;
u_char *buf;
buf = (u_char *) malloc(chunk_bytes);
if (buf == NULL) {
error(_("can't allocate buffer for silence"));
return; /* not fatal error */
}
snd_pcm_format_set_silence(hwparams.format, buf, chunk_size * hwparams.channels);
while (x > 0) {
l = x;
if (l > chunk_size)
l = chunk_size;
if (voc_pcm_write(buf, l) != (ssize_t)l) {
error(_("write error"));
exit(EXIT_FAILURE);
}
x -= l;
}
free(buf);
}
static void voc_pcm_flush(void)
{
if (buffer_pos > 0) {
size_t b;
if (snd_pcm_format_set_silence(hwparams.format, audiobuf + buffer_pos, chunk_bytes - buffer_pos * 8 / bits_per_sample) < 0)
fprintf(stderr, _("voc_pcm_flush - silence error"));
b = chunk_size;
if (pcm_write(audiobuf, b) != (ssize_t)b)
error(_("voc_pcm_flush error"));
}
snd_pcm_nonblock(handle, 0);
snd_pcm_drain(handle);
snd_pcm_nonblock(handle, nonblock);
}
static void voc_play(int fd, int ofs, char *name)
{
int l;
VocBlockType *bp;
VocVoiceData *vd;
VocExtBlock *eb;
size_t nextblock, in_buffer;
u_char *data, *buf;
char was_extended = 0, output = 0;
u_short *sp, repeat = 0;
size_t silence;
off64_t filepos = 0;
#define COUNT(x) nextblock -= x; in_buffer -= x; data += x
#define COUNT1(x) in_buffer -= x; data += x
data = buf = (u_char *)malloc(64 * 1024);
buffer_pos = 0;
if (data == NULL) {
error(_("malloc error"));
exit(EXIT_FAILURE);
}
if (!quiet_mode) {
fprintf(stderr, _("Playing Creative Labs Channel file '%s'...\n"), name);
}
/* first we waste the rest of header, ugly but we don't need seek */
while (ofs > (ssize_t)chunk_bytes) {
if ((size_t)safe_read(fd, buf, chunk_bytes) != chunk_bytes) {
error(_("read error"));
exit(EXIT_FAILURE);
}
ofs -= chunk_bytes;
}
if (ofs) {
if (safe_read(fd, buf, ofs) != ofs) {
error(_("read error"));
exit(EXIT_FAILURE);
}
}
hwparams.format = DEFAULT_FORMAT;
hwparams.channels = 1;
hwparams.rate = DEFAULT_SPEED;
set_params();
in_buffer = nextblock = 0;
while (1) {
Fill_the_buffer: /* need this for repeat */
if (in_buffer < 32) {
/* move the rest of buffer to pos 0 and fill the buf up */
if (in_buffer)
memcpy(buf, data, in_buffer);
data = buf;
if ((l = safe_read(fd, buf + in_buffer, chunk_bytes - in_buffer)) > 0)
in_buffer += l;
else if (!in_buffer) {
/* the file is truncated, so simulate 'Terminator'
and reduce the datablock for safe landing */
nextblock = buf[0] = 0;
if (l == -1) {
perror(name);
exit(EXIT_FAILURE);
}
}
}
while (!nextblock) { /* this is a new block */
if (in_buffer < sizeof(VocBlockType))
goto __end;
bp = (VocBlockType *) data;
COUNT1(sizeof(VocBlockType));
nextblock = VOC_DATALEN(bp);
if (output && !quiet_mode)
fprintf(stderr, "\n"); /* write /n after ASCII-out */
output = 0;
switch (bp->type) {
case 0:
#if 0
d_printf("Terminator\n");
#endif
return; /* VOC-file stop */
case 1:
vd = (VocVoiceData *) data;
COUNT1(sizeof(VocVoiceData));
/* we need a SYNC, before we can set new SPEED, STEREO ... */
if (!was_extended) {
hwparams.rate = (int) (vd->tc);
hwparams.rate = 1000000 / (256 - hwparams.rate);
#if 0
d_printf("Channel data %d Hz\n", dsp_speed);
#endif
if (vd->pack) { /* /dev/dsp can't it */
error(_("can't play packed .voc files"));
return;
}
if (hwparams.channels == 2) /* if we are in Stereo-Mode, switch back */
hwparams.channels = 1;
} else { /* there was extended block */
hwparams.channels = 2;
was_extended = 0;
}
set_params();
break;
case 2: /* nothing to do, pure data */
#if 0
d_printf("Channel continuation\n");
#endif
break;
case 3: /* a silence block, no data, only a count */
sp = (u_short *) data;
COUNT1(sizeof(u_short));
hwparams.rate = (int) (*data);
COUNT1(1);
hwparams.rate = 1000000 / (256 - hwparams.rate);
set_params();
silence = (((size_t) * sp) * 1000) / hwparams.rate;
#if 0
d_printf("Silence for %d ms\n", (int) silence);
#endif
voc_write_silence(*sp);
break;
case 4: /* a marker for syncronisation, no effect */
sp = (u_short *) data;
COUNT1(sizeof(u_short));
#if 0
d_printf("Marker %d\n", *sp);
#endif
break;
case 5: /* ASCII text, we copy to stderr */
output = 1;
#if 0
d_printf("ASCII - text :\n");
#endif
break;
case 6: /* repeat marker, says repeatcount */
/* my specs don't say it: maybe this can be recursive, but
I don't think somebody use it */
repeat = *(u_short *) data;
COUNT1(sizeof(u_short));
#if 0
d_printf("Repeat loop %d times\n", repeat);
#endif
if (filepos >= 0) { /* if < 0, one seek fails, why test another */
if ((filepos = lseek64(fd, 0, 1)) < 0) {
error(_("can't play loops; %s isn't seekable\n"), name);
repeat = 0;
} else {
filepos -= in_buffer; /* set filepos after repeat */
}
} else {
repeat = 0;
}
break;
case 7: /* ok, lets repeat that be rewinding tape */
if (repeat) {
if (repeat != 0xFFFF) {
#if 0
d_printf("Repeat loop %d\n", repeat);
#endif
--repeat;
}
#if 0
else
d_printf("Neverending loop\n");
#endif
lseek64(fd, filepos, 0);
in_buffer = 0; /* clear the buffer */
goto Fill_the_buffer;
}
#if 0
else
d_printf("End repeat loop\n");
#endif
break;
case 8: /* the extension to play Stereo, I have SB 1.0 :-( */
was_extended = 1;
eb = (VocExtBlock *) data;
COUNT1(sizeof(VocExtBlock));
hwparams.rate = (int) (eb->tc);
hwparams.rate = 256000000L / (65536 - hwparams.rate);
hwparams.channels = eb->mode == VOC_MODE_STEREO ? 2 : 1;
if (hwparams.channels == 2)
hwparams.rate = hwparams.rate >> 1;
if (eb->pack) { /* /dev/dsp can't it */
error(_("can't play packed .voc files"));
return;
}
#if 0
d_printf("Extended block %s %d Hz\n",
(eb->mode ? "Stereo" : "Mono"), dsp_speed);
#endif
break;
default:
error(_("unknown blocktype %d. terminate."), bp->type);
return;
} /* switch (bp->type) */
} /* while (! nextblock) */
/* put nextblock data bytes to dsp */
l = in_buffer;
if (nextblock < (size_t)l)
l = nextblock;
if (l) {
if (output && !quiet_mode) {
if (write(2, data, l) != l) { /* to stderr */
error(_("write error"));
exit(EXIT_FAILURE);
}
} else {
if (voc_pcm_write(data, l) != l) {
error(_("write error"));
exit(EXIT_FAILURE);
}
}
COUNT(l);
}
} /* while(1) */
__end:
voc_pcm_flush();
free(buf);
}
/* that was a big one, perhaps somebody split it :-) */
/* setting the globals for playing raw data */
static void init_raw_data(void)
{
hwparams = rhwparams;
}
/* calculate the data count to read from/to dsp */
static off64_t calc_count(void)
{
off64_t count;
if (timelimit == 0) {
count = pbrec_count;
} else {
count = snd_pcm_format_size(hwparams.format, hwparams.rate * hwparams.channels);
count *= (off64_t)timelimit;
}
return count < pbrec_count ? count : pbrec_count;
}
/* write a .VOC-header */
static void begin_voc(int fd, size_t cnt)
{
VocHeader vh;
VocBlockType bt;
VocVoiceData vd;
VocExtBlock eb;
memcpy(vh.magic, VOC_MAGIC_STRING, 20);
vh.headerlen = LE_SHORT(sizeof(VocHeader));
vh.version = LE_SHORT(VOC_ACTUAL_VERSION);
vh.coded_ver = LE_SHORT(0x1233 - VOC_ACTUAL_VERSION);
if (write(fd, &vh, sizeof(VocHeader)) != sizeof(VocHeader)) {
error(_("write error"));
exit(EXIT_FAILURE);
}
if (hwparams.channels > 1) {
/* write an extended block */
bt.type = 8;
bt.datalen = 4;
bt.datalen_m = bt.datalen_h = 0;
if (write(fd, &bt, sizeof(VocBlockType)) != sizeof(VocBlockType)) {
error(_("write error"));
exit(EXIT_FAILURE);
}
eb.tc = LE_SHORT(65536 - 256000000L / (hwparams.rate << 1));
eb.pack = 0;
eb.mode = 1;
if (write(fd, &eb, sizeof(VocExtBlock)) != sizeof(VocExtBlock)) {
error(_("write error"));
exit(EXIT_FAILURE);
}
}
bt.type = 1;
cnt += sizeof(VocVoiceData); /* Channel_data block follows */
bt.datalen = (u_char) (cnt & 0xFF);
bt.datalen_m = (u_char) ((cnt & 0xFF00) >> 8);
bt.datalen_h = (u_char) ((cnt & 0xFF0000) >> 16);
if (write(fd, &bt, sizeof(VocBlockType)) != sizeof(VocBlockType)) {
error(_("write error"));
exit(EXIT_FAILURE);
}
vd.tc = (u_char) (256 - (1000000 / hwparams.rate));
vd.pack = 0;
if (write(fd, &vd, sizeof(VocVoiceData)) != sizeof(VocVoiceData)) {
error(_("write error"));
exit(EXIT_FAILURE);
}
}
/* write a WAVE-header */
static void begin_wave(int fd, size_t cnt)
{
WaveHeader h;
WaveFmtBody f;
WaveChunkHeader cf, cd;
int bits;
u_int tmp;
u_short tmp2;
/* WAVE cannot handle greater than 32bit (signed?) int */
if (cnt == (size_t)-2)
cnt = 0x7fffff00;
bits = 8;
switch ((unsigned long) hwparams.format) {
case SND_PCM_FORMAT_U8:
bits = 8;
break;
case SND_PCM_FORMAT_S16_LE:
bits = 16;
break;
case SND_PCM_FORMAT_S32_LE:
case SND_PCM_FORMAT_FLOAT_LE:
bits = 32;
break;
case SND_PCM_FORMAT_S24_LE:
case SND_PCM_FORMAT_S24_3LE:
bits = 24;
break;
default:
error(_("Wave doesn't support %s format..."), snd_pcm_format_name(hwparams.format));
exit(EXIT_FAILURE);
}
h.magic = WAV_RIFF;
tmp = cnt + sizeof(WaveHeader) + sizeof(WaveChunkHeader) + sizeof(WaveFmtBody) + sizeof(WaveChunkHeader) - 8;
h.length = LE_INT(tmp);
h.type = WAV_WAVE;
cf.type = WAV_FMT;
cf.length = LE_INT(16);
if (hwparams.format == SND_PCM_FORMAT_FLOAT_LE)
f.format = LE_SHORT(WAV_FMT_IEEE_FLOAT);
else
f.format = LE_SHORT(WAV_FMT_PCM);
f.channels = LE_SHORT(hwparams.channels);
f.sample_fq = LE_INT(hwparams.rate);
#if 0
tmp2 = (samplesize == 8) ? 1 : 2;
f.byte_p_spl = LE_SHORT(tmp2);
tmp = dsp_speed * hwparams.channels * (u_int) tmp2;
#else
tmp2 = hwparams.channels * snd_pcm_format_physical_width(hwparams.format) / 8;
f.byte_p_spl = LE_SHORT(tmp2);
tmp = (u_int) tmp2 * hwparams.rate;
#endif
f.byte_p_sec = LE_INT(tmp);
f.bit_p_spl = LE_SHORT(bits);
cd.type = WAV_DATA;
cd.length = LE_INT(cnt);
if (write(fd, &h, sizeof(WaveHeader)) != sizeof(WaveHeader) ||
write(fd, &cf, sizeof(WaveChunkHeader)) != sizeof(WaveChunkHeader) ||
write(fd, &f, sizeof(WaveFmtBody)) != sizeof(WaveFmtBody) ||
write(fd, &cd, sizeof(WaveChunkHeader)) != sizeof(WaveChunkHeader)) {
error(_("write error"));
exit(EXIT_FAILURE);
}
}
/* write a Au-header */
static void begin_au(int fd, size_t cnt)
{
AuHeader ah;
ah.magic = AU_MAGIC;
ah.hdr_size = BE_INT(24);
ah.data_size = BE_INT(cnt);
switch ((unsigned long) hwparams.format) {
case SND_PCM_FORMAT_MU_LAW:
ah.encoding = BE_INT(AU_FMT_ULAW);
break;
case SND_PCM_FORMAT_U8:
ah.encoding = BE_INT(AU_FMT_LIN8);
break;
case SND_PCM_FORMAT_S16_BE:
ah.encoding = BE_INT(AU_FMT_LIN16);
break;
default:
error(_("Sparc Audio doesn't support %s format..."), snd_pcm_format_name(hwparams.format));
exit(EXIT_FAILURE);
}
ah.sample_rate = BE_INT(hwparams.rate);
ah.channels = BE_INT(hwparams.channels);
if (write(fd, &ah, sizeof(AuHeader)) != sizeof(AuHeader)) {
error(_("write error"));
exit(EXIT_FAILURE);
}
}
/* closing .VOC */
static void end_voc(int fd)
{
off64_t length_seek;
VocBlockType bt;
size_t cnt;
char dummy = 0; /* Write a Terminator */
if (write(fd, &dummy, 1) != 1) {
error(_("write error"));
exit(EXIT_FAILURE);
}
length_seek = sizeof(VocHeader);
if (hwparams.channels > 1)
length_seek += sizeof(VocBlockType) + sizeof(VocExtBlock);
bt.type = 1;
cnt = fdcount;
cnt += sizeof(VocVoiceData); /* Channel_data block follows */
if (cnt > 0x00ffffff)
cnt = 0x00ffffff;
bt.datalen = (u_char) (cnt & 0xFF);
bt.datalen_m = (u_char) ((cnt & 0xFF00) >> 8);
bt.datalen_h = (u_char) ((cnt & 0xFF0000) >> 16);
if (lseek64(fd, length_seek, SEEK_SET) == length_seek)
write(fd, &bt, sizeof(VocBlockType));
if (fd != 1)
close(fd);
}
static void end_wave(int fd)
{ /* only close output */
WaveChunkHeader cd;
off64_t length_seek;
off64_t filelen;
u_int rifflen;
length_seek = sizeof(WaveHeader) +
sizeof(WaveChunkHeader) +
sizeof(WaveFmtBody);
cd.type = WAV_DATA;
cd.length = fdcount > 0x7fffffff ? LE_INT(0x7fffffff) : LE_INT(fdcount);
filelen = fdcount + 2*sizeof(WaveChunkHeader) + sizeof(WaveFmtBody) + 4;
rifflen = filelen > 0x7fffffff ? LE_INT(0x7fffffff) : LE_INT(filelen);
if (lseek64(fd, 4, SEEK_SET) == 4)
write(fd, &rifflen, 4);
if (lseek64(fd, length_seek, SEEK_SET) == length_seek)
write(fd, &cd, sizeof(WaveChunkHeader));
if (fd != 1)
close(fd);
}
static void end_au(int fd)
{ /* only close output */
AuHeader ah;
off64_t length_seek;
length_seek = (char *)&ah.data_size - (char *)&ah;
ah.data_size = fdcount > 0xffffffff ? 0xffffffff : BE_INT(fdcount);
if (lseek64(fd, length_seek, SEEK_SET) == length_seek)
write(fd, &ah.data_size, sizeof(ah.data_size));
if (fd != 1)
close(fd);
}
static void header(int rtype, char *name)
{
if (!quiet_mode) {
if (! name)
name = (stream == SND_PCM_STREAM_PLAYBACK) ? "stdout" : "stdin";
fprintf(stderr, "%s %s '%s' : ",
(stream == SND_PCM_STREAM_PLAYBACK) ? _("Playing") : _("Recording"),
gettext(fmt_rec_table[rtype].what),
name);
fprintf(stderr, "%s, ", snd_pcm_format_description(hwparams.format));
fprintf(stderr, _("Rate %d Hz, "), hwparams.rate);
if (hwparams.channels == 1)
fprintf(stderr, _("Mono"));
else if (hwparams.channels == 2)
fprintf(stderr, _("Stereo"));
else
fprintf(stderr, _("Channels %i"), hwparams.channels);
fprintf(stderr, "\n");
}
}
/* playing raw data */
static void playback_go(int fd, size_t loaded, off64_t count, int rtype, char *name)
{
int l, r;
off64_t written = 0;
off64_t c;
header(rtype, name);
set_params();
while (loaded > chunk_bytes && written < count) {
if (pcm_write(audiobuf + written, chunk_size) <= 0)
return;
written += chunk_bytes;
loaded -= chunk_bytes;
}
if (written > 0 && loaded > 0)
memmove(audiobuf, audiobuf + written, loaded);
l = loaded;
while (written < count) {
do {
c = count - written;
if (c > chunk_bytes)
c = chunk_bytes;
c -= l;
if (c == 0)
break;
r = safe_read(fd, audiobuf + l, c);
if (r < 0) {
perror(name);
exit(EXIT_FAILURE);
}
fdcount += r;
if (r == 0)
break;
l += r;
} while ((size_t)l < chunk_bytes);
l = l * 8 / bits_per_frame;
r = pcm_write(audiobuf, l);
if (r != l)
break;
r = r * bits_per_frame / 8;
written += r;
l = 0;
}
snd_pcm_nonblock(handle, 0);
snd_pcm_drain(handle);
snd_pcm_nonblock(handle, nonblock);
}
/*
* let's play or capture it (capture_type says VOC/WAVE/raw)
*/
static void playback(char *name)
{
int ofs;
size_t dta;
ssize_t dtawave;
pbrec_count = LLONG_MAX;
fdcount = 0;
if (!name || !strcmp(name, "-")) {
fd = fileno(stdin);
name = "stdin";
} else {
if ((fd = open64(name, O_RDONLY, 0)) == -1) {
perror(name);
exit(EXIT_FAILURE);
}
}
/* read the file header */
dta = sizeof(AuHeader);
if ((size_t)safe_read(fd, audiobuf, dta) != dta) {
error(_("read error"));
exit(EXIT_FAILURE);
}
if (test_au(fd, audiobuf) >= 0) {
rhwparams.format = hwparams.format;
pbrec_count = calc_count();
playback_go(fd, 0, pbrec_count, FORMAT_AU, name);
goto __end;
}
dta = sizeof(VocHeader);
if ((size_t)safe_read(fd, audiobuf + sizeof(AuHeader),
dta - sizeof(AuHeader)) != dta - sizeof(AuHeader)) {
error(_("read error"));
exit(EXIT_FAILURE);
}
if ((ofs = test_vocfile(audiobuf)) >= 0) {
pbrec_count = calc_count();
voc_play(fd, ofs, name);
goto __end;
}
/* read bytes for WAVE-header */
if ((dtawave = test_wavefile(fd, audiobuf, dta)) >= 0) {
pbrec_count = calc_count();
playback_go(fd, dtawave, pbrec_count, FORMAT_WAVE, name);
} else {
/* should be raw data */
init_raw_data();
pbrec_count = calc_count();
playback_go(fd, dta, pbrec_count, FORMAT_RAW, name);
}
__end:
if (fd != 0)
close(fd);
}
static int new_capture_file(char *name, char *namebuf, size_t namelen,
int filecount)
{
/* get a copy of the original filename */
char *s;
char buf[PATH_MAX+1];
strncpy(buf, name, sizeof(buf));
/* separate extension from filename */
s = buf + strlen(buf);
while (s > buf && *s != '.' && *s != '/')
--s;
if (*s == '.')
*s++ = 0;
else if (*s == '/')
s = buf + strlen(buf);
/* upon first jump to this if block rename the first file */
if (filecount == 1) {
if (*s)
snprintf(namebuf, namelen, "%s-01.%s", buf, s);
else
snprintf(namebuf, namelen, "%s-01", buf);
remove(namebuf);
rename(name, namebuf);
filecount = 2;
}
/* name of the current file */
if (*s)
snprintf(namebuf, namelen, "%s-%02i.%s", buf, filecount, s);
else
snprintf(namebuf, namelen, "%s-%02i", buf, filecount);
return filecount;
}
static void capture(char *orig_name)
{
int tostdout=0; /* boolean which describes output stream */
int filecount=0; /* number of files written */
char *name = orig_name; /* current filename */
char namebuf[PATH_MAX+1];
off64_t count, rest; /* number of bytes to capture */
/* get number of bytes to capture */
count = calc_count();
if (count == 0)
count = LLONG_MAX;
/* WAVE-file should be even (I'm not sure), but wasting one byte
isn't a problem (this can only be in 8 bit mono) */
if (count < LLONG_MAX)
count += count % 2;
else
count -= count % 2;
/* display verbose output to console */
header(file_type, name);
/* setup sound hardware */
set_params();
/* write to stdout? */
if (!name || !strcmp(name, "-")) {
fd = fileno(stdout);
name = "stdout";
tostdout=1;
if (count > fmt_rec_table[file_type].max_filesize)
count = fmt_rec_table[file_type].max_filesize;
}
do {
/* open a file to write */
if(!tostdout) {
/* upon the second file we start the numbering scheme */
if (filecount) {
filecount = new_capture_file(orig_name, namebuf,
sizeof(namebuf),
filecount);
name = namebuf;
}
/* open a new file */
remove(name);
if ((fd = open64(name, O_WRONLY | O_CREAT, 0644)) == -1) {
perror(name);
exit(EXIT_FAILURE);
}
filecount++;
}
rest = count;
if (rest > fmt_rec_table[file_type].max_filesize)
rest = fmt_rec_table[file_type].max_filesize;
/* setup sample header */
if (fmt_rec_table[file_type].start)
fmt_rec_table[file_type].start(fd, rest);
/* capture */
fdcount = 0;
while (rest > 0) {
size_t c = (rest <= (off64_t)chunk_bytes) ?
(size_t)rest : chunk_bytes;
size_t f = c * 8 / bits_per_frame;
if (pcm_read(audiobuf, f) != f)
break;
if (write(fd, audiobuf, c) != c) {
perror(name);
exit(EXIT_FAILURE);
}
count -= c;
rest -= c;
fdcount += c;
}
/* finish sample container */
if (fmt_rec_table[file_type].end && !tostdout) {
fmt_rec_table[file_type].end(fd);
fd = -1;
}
/* repeat the loop when format is raw without timelimit or
* requested counts of data are recorded
*/
} while ((file_type == FORMAT_RAW && !timelimit) || count > 0);
}
static void playbackv_go(int* fds, unsigned int channels, size_t loaded, off64_t count, int rtype, char **names)
{
int r;
size_t vsize;
unsigned int channel;
u_char *bufs[channels];
header(rtype, names[0]);
set_params();
vsize = chunk_bytes / channels;
// Not yet implemented
assert(loaded == 0);
for (channel = 0; channel < channels; ++channel)
bufs[channel] = audiobuf + vsize * channel;
while (count > 0) {
size_t c = 0;
size_t expected = count / channels;
if (expected > vsize)
expected = vsize;
do {
r = safe_read(fds[0], bufs[0], expected);
if (r < 0) {
perror(names[channel]);
exit(EXIT_FAILURE);
}
for (channel = 1; channel < channels; ++channel) {
if (safe_read(fds[channel], bufs[channel], r) != r) {
perror(names[channel]);
exit(EXIT_FAILURE);
}
}
if (r == 0)
break;
c += r;
} while (c < expected);
c = c * 8 / bits_per_sample;
r = pcm_writev(bufs, channels, c);
if ((size_t)r != c)
break;
r = r * bits_per_frame / 8;
count -= r;
}
snd_pcm_nonblock(handle, 0);
snd_pcm_drain(handle);
snd_pcm_nonblock(handle, nonblock);
}
static void capturev_go(int* fds, unsigned int channels, off64_t count, int rtype, char **names)
{
size_t c;
ssize_t r;
unsigned int channel;
size_t vsize;
u_char *bufs[channels];
header(rtype, names[0]);
set_params();
vsize = chunk_bytes / channels;
for (channel = 0; channel < channels; ++channel)
bufs[channel] = audiobuf + vsize * channel;
while (count > 0) {
size_t rv;
c = count;
if (c > chunk_bytes)
c = chunk_bytes;
c = c * 8 / bits_per_frame;
if ((size_t)(r = pcm_readv(bufs, channels, c)) != c)
break;
rv = r * bits_per_sample / 8;
for (channel = 0; channel < channels; ++channel) {
if ((size_t)write(fds[channel], bufs[channel], rv) != rv) {
perror(names[channel]);
exit(EXIT_FAILURE);
}
}
r = r * bits_per_frame / 8;
count -= r;
fdcount += r;
}
}
static void playbackv(char **names, unsigned int count)
{
int ret = 0;
unsigned int channel;
unsigned int channels = rhwparams.channels;
int alloced = 0;
int fds[channels];
for (channel = 0; channel < channels; ++channel)
fds[channel] = -1;
if (count == 1 && channels > 1) {
size_t len = strlen(names[0]);
char format[1024];
memcpy(format, names[0], len);
strcpy(format + len, ".%d");
len += 4;
names = malloc(sizeof(*names) * channels);
for (channel = 0; channel < channels; ++channel) {
names[channel] = malloc(len);
sprintf(names[channel], format, channel);
}
alloced = 1;
} else if (count != channels) {
error(_("You need to specify %d files"), channels);
exit(EXIT_FAILURE);
}
for (channel = 0; channel < channels; ++channel) {
fds[channel] = open(names[channel], O_RDONLY, 0);
if (fds[channel] < 0) {
perror(names[channel]);
ret = EXIT_FAILURE;
goto __end;
}
}
/* should be raw data */
init_raw_data();
pbrec_count = calc_count();
playbackv_go(fds, channels, 0, pbrec_count, FORMAT_RAW, names);
__end:
for (channel = 0; channel < channels; ++channel) {
if (fds[channel] >= 0)
close(fds[channel]);
if (alloced)
free(names[channel]);
}
if (alloced)
free(names);
if (ret)
exit(ret);
}
static void capturev(char **names, unsigned int count)
{
int ret = 0;
unsigned int channel;
unsigned int channels = rhwparams.channels;
int alloced = 0;
int fds[channels];
for (channel = 0; channel < channels; ++channel)
fds[channel] = -1;
if (count == 1) {
size_t len = strlen(names[0]);
char format[1024];
memcpy(format, names[0], len);
strcpy(format + len, ".%d");
len += 4;
names = malloc(sizeof(*names) * channels);
for (channel = 0; channel < channels; ++channel) {
names[channel] = malloc(len);
sprintf(names[channel], format, channel);
}
alloced = 1;
} else if (count != channels) {
error(_("You need to specify %d files"), channels);
exit(EXIT_FAILURE);
}
for (channel = 0; channel < channels; ++channel) {
fds[channel] = open(names[channel], O_WRONLY + O_CREAT, 0644);
if (fds[channel] < 0) {
perror(names[channel]);
ret = EXIT_FAILURE;
goto __end;
}
}
/* should be raw data */
init_raw_data();
pbrec_count = calc_count();
capturev_go(fds, channels, pbrec_count, FORMAT_RAW, names);
__end:
for (channel = 0; channel < channels; ++channel) {
if (fds[channel] >= 0)
close(fds[channel]);
if (alloced)
free(names[channel]);
}
if (alloced)
free(names);
if (ret)
exit(ret);
}
Reference in a new issue View git blame Copy permalink